Hotmail emails keep disappearing from Blackberry Q10 Hub

I have a Blackberry Q10 and for the past 2 weeks all of my Hotmail emails keep disappearing from the Hub.  I have tried deleting and re-adding the email account; I have tried restoring my handset to factory settings and re-adding everything; I have tried syncing using wi-fi only or just the data network with wi-fi turned off etc etc.  None of the above works; the emails start to appear and load onto the handset but after a few hours the emails all disappear and the hub shows 'no entries in this view'.  I have tried waiting overnight as my sync time is set to 'forever' so I know it may take time to load old emails.

Please DO NOT ask me to contact Blackberry as this is NOT a Blackberry issue; it is a problem many Outlook.com users are experiencing (there are posts in many forums on different websites about this problem but no actual fix seems to have been posted anywhere) and in some cases Microsoft Support seems to have resolved the issue for them.  I have researched it extensively so I am pretty certain that it is an m.hotmail.com problem.  Also, if you check on http://www.websitedown.info/ it shows m.hotmail.com as being 'down'.

Please can you help as I urgently require mobile access to my emails and believe there must be a way for this to be resolved.

Thank you.